Eraser Refill for 844 Caran d'Ache Mechanical Pencil

This eraser refill  by Caran d'Ache can be slipped into your 844 Mechanical Pencil when the eraser has been rubbed bare with use. 

Swiss made from 1915 to the present day. Caran d’Ache was founded when Geneva had no other pencil maker. The city was filled with watchmakers and jewelers and that atmosphere of detail and innovation affected this company. They designed the first mechanical pencil, invented the first watercolor pencil and their line of pencils, luminance 6901, won a certificate for the highest lightfastness. In all their products there’s care for the environment in which they source materials, the quality of craftsmanship, and the safety and experience of the people whose hands will eventually hold these tools.